diff options
Diffstat (limited to 'gcc/config/vax/vax.h')
| -rw-r--r-- | gcc/config/vax/vax.h | 53 |
1 files changed, 39 insertions, 14 deletions
diff --git a/gcc/config/vax/vax.h b/gcc/config/vax/vax.h index 06b6d219d77..a3a9dde538d 100644 --- a/gcc/config/vax/vax.h +++ b/gcc/config/vax/vax.h @@ -1,6 +1,6 @@ /* Definitions of target machine for GNU compiler. Vax version. Copyright (C) 1987, 1988, 1991, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000 Free Software Foundation, Inc. + 1999, 2000, 2001 Free Software Foundation, Inc. This file is part of GNU CC. @@ -865,6 +865,10 @@ enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES }; is done just by pretending it is already truncated. */ #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 +/* When a prototype says `char' or `short', really pass an `int'. + (On the vax, this is required for system-library compatibility.) */ +#define PROMOTE_PROTOTYPES 1 + /* Specify the machine mode that pointers have. After generation of rtl, the compiler makes no further distinction between pointers and any other objects of this machine mode. */ @@ -982,7 +986,30 @@ enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES }; CC_STATUS_INIT; \ else if (GET_CODE (SET_DEST (EXP)) != ZERO_EXTRACT \ && GET_CODE (SET_DEST (EXP)) != PC) \ - { cc_status.flags = 0; \ + { \ + cc_status.flags = 0; \ + /* The integer operations below don't set carry or \ + set it in an incompatible way. That's ok though \ + as the Z bit is all we need when doing unsigned \ + comparisons on the result of these insns (since \ + they're always with 0). Set CC_NO_OVERFLOW to \ + generate the correct unsigned branches. */ \ + switch (GET_CODE (SET_SRC (EXP))) \ + { \ + case NEG: \ + if (GET_MODE_CLASS (GET_MODE (EXP)) == MODE_FLOAT)\ + break; \ + case AND: \ + case IOR: \ + case XOR: \ + case NOT: \ + case MEM: \ + case REG: \ + cc_status.flags = CC_NO_OVERFLOW; \ + break; \ + default: \ + break; \ + } \ cc_status.value1 = SET_DEST (EXP); \ cc_status.value2 = SET_SRC (EXP); } } \ else if (GET_CODE (EXP) == PARALLEL \ @@ -1018,8 +1045,17 @@ enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES }; /* Control the assembler format that we output. */ /* Output at beginning of assembler file. */ +/* When debugging, we want to output an extra dummy label so that gas + can distinguish between D_float and G_float prior to processing the + .stabs directive identifying type double. */ + +#define ASM_FILE_START(FILE) \ + do { \ + fputs (ASM_APP_OFF, FILE); \ + if (write_symbols == DBX_DEBUG) \ + fprintf (FILE, "___vax_%c_doubles:\n", ASM_DOUBLE_CHAR); \ + } while (0) -#define ASM_FILE_START(FILE) fprintf (FILE, "#NO_APP\n"); /* Output to assembler file text saying following lines may contain character constants, extra white space, comments, etc. */ @@ -1208,17 +1244,6 @@ do { char dstr[30]; \ ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \ sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO))) -/* When debugging, we want to output an extra dummy label so that gas - can distinguish between D_float and G_float prior to processing the - .stabs directive identifying type double. */ - -#define ASM_IDENTIFY_LANGUAGE(FILE) \ - do { \ - output_lang_identify (FILE); \ - if (write_symbols == DBX_DEBUG) \ - fprintf (FILE, "___vax_%c_doubles:\n", ASM_DOUBLE_CHAR); \ - } while (0) - /* Output code to add DELTA to the first argument, and then jump to FUNCTION. Used for C++ multiple inheritance. .mask ^m<r2,r3,r4,r5,r6,r7,r8,r9,r10,r11> #conservative entry mask |